high-energy electron diffraction

high-energy electron diffraction

[′hī ‚en·ər·jē i′lek‚trȧn di‚frak·shən] (physics) The diffraction of electrons with high energies, usually in the range of 30,000-70,000 electronvolts, mainly to study the structure of atoms and molecules in gases and liquids. Abbreviated HEED.